What does GFR stand for?

What does GFR mean?

GFR	German Federal Republic Regional » Countries
GFR	Glass Fiber Reinforced Miscellaneous » Plastics
GFR	Glomerular Filtration Rate Medical » Oncology
GFR	Glomerular Filtration Rate Medical » Physiology
GFR	Glomerular Filtration Rate Medical » Laboratory
GFR	Graham Family Reunion Community
GFR	Grand Forks Railway Company Regional » Railroads
GFR	Granville, France Regional » Airport Codes
GFR	Grim File Reaper Miscellaneous » Unclassified
GFR	Guaranteed Frame Rate Miscellaneous » Unclassified